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+/*
+ * minix_fs.h
+ * stolen (and slightly extended by csb) from the Linux distribution
+ * Copyright (C) 1994 Linus Torvalds
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef _LINUX_MINIX_FS_H
+#define _LINUX_MINIX_FS_H
+
+/*
+ * The minix filesystem constants/structures
+ */
+
+/*
+ * Thanks to Kees J Bot for sending me the definitions of the new
+ * minix filesystem (aka V2) with bigger inodes and 32-bit block
+ * pointers. It's not actually implemented yet, but I'll look into
+ * it.
+ */
+
+#define MINIX_ROOT_INO 1
+
+/* Not the same as the bogus LINK_MAX in <linux/limits.h>. Oh well. */
+#define MINIX_LINK_MAX 250
+
+#define MINIX_I_MAP_SLOTS 8
+#define MINIX_Z_MAP_SLOTS 8
+#define MINIX_SUPER_MAGIC 0x137F /* original minix fs */
+#define MINIX_SUPER_MAGIC2 0x138F /* minix fs, 30 char names */
+#define NEW_MINIX_SUPER_MAGIC 0x2468 /* minix V2 - not implemented */
+#define MINIX_VALID_FS 0x0001 /* Clean fs. */
+#define MINIX_ERROR_FS 0x0002 /* fs has errors. */
+
+#define MINIX_INODES_PER_BLOCK ((MINIX_BLOCK_SIZE)/(sizeof (struct minix_inode)))
+
+struct minix_inode {
+ unsigned short i_mode;
+ unsigned short i_uid;
+ unsigned long i_size;
+ unsigned long i_time;
+ unsigned char i_gid;
+ unsigned char i_nlinks;
+ unsigned short i_zone[9];
+};
+
+/*
+ * The new minix inode has all the time entries, as well as
+ * long block numbers and a third indirect block (7+1+1+1
+ * instead of 7+1+1). Also, some previously 8-bit values are
+ * now 16-bit. The inode is now 64 bytes instead of 32.
+ */
+struct new_minix_inode {
+ unsigned short i_mode;
+ unsigned short i_nlinks;
+ unsigned short i_uid;
+ unsigned short i_gid;
+ unsigned long i_size;
+ unsigned long i_atime;
+ unsigned long i_mtime;
+ unsigned long i_ctime;
+ unsigned long i_zone[10];
+};
+
+/*
+ * minix super-block data on disk
+ */
+struct minix_super_block {
+ unsigned short s_ninodes;
+ unsigned short s_nzones;
+ unsigned short s_imap_blocks;
+ unsigned short s_zmap_blocks;
+ unsigned short s_firstdatazone;
+ unsigned short s_log_zone_size;
+ unsigned long s_max_size;
+ unsigned short s_magic;
+ unsigned short s_state;
+};
+
+struct minix_dir_entry {
+ unsigned short inode;
+ char name[0];
+};
+
+struct minix_directory_entry {
+ unsigned short inode;
+ char name[14];
+};
+
+#define MINIX_NIADDR 2
+
+typedef unsigned short minix_daddr_t;
+
+#endif